package ex35;

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;

public class Main {
	
	public static void main(String[] args) throws IOException {
		
		InputStreamReader it = new InputStreamReader(System.in);
		BufferedReader in = new BufferedReader(it);
		
		String input, inputPart[] = new String[3];
		int a, b, c, d;
		
		input = in.readLine();
		
		inputPart = input.split(" ", 4);
		a = Integer.parseInt(inputPart[0]);
		b = Integer.parseInt(inputPart[1]);
		c = Integer.parseInt(inputPart[2]);
		d = Integer.parseInt(inputPart[3]);
		
		if (b > c && d > a && (c+d) > (a+b) && (c>0 && d>0) && (a%2==0) ) {
			System.out.println("Valores aceitos");
		} else {
			System.out.println("Valores nao aceitos");
		}
		
	}

}
